Mold.



No. 897,113. PATENTED AUG. 25, 190e. c. H. LAWTON. MOLD.

APPLICATION FILED NOV. 1907.

' 2 SHEETS-SHEET 1.

0. H. LAWTON.

MOLD.

APPLIOATloN FILED Nov. so,

PATENTED AUG. 25, 1908;

2 SHEETS-SHEET 2. I

CHARLES H'. lLAWTON, OF TCRRINGTCN, -CCNNCTCUQ 'ASSIGNCR TO AMERCANBRASS COMPANY, vOF WATERBURY, CONNECTICUT, A CORPORATION OF CCNNECTXCUT.

Moen.

kNn semis.

Specification ofll'ietters Patent.

Patented Aug. 25, 1903.-

Appiicaeon sies 'simmer so, 1am. serai it. items.

l. To all. whom it may Concern:

Be. it known that l, CHARLES H. LAWTON, a citizen of' the United States,residing at Torrington, county of Litchfield, State of Connecticut, haveinvented certain new and useful Improvements in Molds, of'ivhich thefollowing is a full, clear, and exact description.`

This invention relates to improvements in molds, and'particularly` to ainold for casting ingots and the like. The' object of the invention isto provide a simple and effective construction whereby Yingots may beproduced in a two-part cast incid., i

Heretoforel in the casting ofy ingots and other articles in molds ofthis character, aA 'fin is usually produced at the edge of the article.

By niy invention this is avoided. Further-y more', the constructionissuch as to facilitate easy handling.

ln the drawings, Figure i tion of a complete niold; Fig. 2 is a'ircntelevation-of the saine Aliig. '3 is front elevation.

of one part removed; Fig. l is a corresponding view of the opposite partremoved; Fig. 5. 4is a section through both parts.

` .The incid is formed essentially of two separate parts l andEitherpart may 'ce des- 1 nated the cover and the other `art the back,but in this description l will refer to the part 'i as the hack, and thepart 2 as the cover. These parts 1 and 2 when assembled,

or'put together, forni between them a space into Which the molten inetalis poured, said space giving to the cast article the desired .outlineThe cover 2 is provided With side l iiznges 2a, 2a, while the base l isprovided with recesses to receive the edges of said- `langes when thetwo parts of the mold are asselnloled ready to receive the inoltennietal. As will be seen, these iianges make afsnug en gagenient withedges lb lb of the bach,over#y lapping the saine in such a inanner astoprevent the molten inet-al from partially escapin at the sides so asal) e side fins.

in the preferred forni of my recess into which the flanges 2a "2aproject have inclined surfaces 1 u l a, and the edges 2b 2b oftheiianges are suitably beveled so that when the t-Wo parts are brought*together, these inclines coactito force'the2 flanoes 2a 2a tightlyagainst the shoulders l-bflfb, el

is a eleva to form the olojectioninvention, thev osing inv l so tightly.as to r'ofvide, in effect, an integral mold and there yf-.preventingthe formation of a rough fin. While thesefinclines are preferable, inthe 1oroadestsense they are not essentialA to the invention, since theiitof the side flanges of the part 2 with thev shoulders 1b 1b niight hesuch as to avoid the necessity of the saine.` Y,

As shown, the part i is provided with a shoulder 3, which constitutes aclosure for the lower end of the mold-when the p arts are assembled andset up. tThis also, to a certain extent, serves as a guide to aline andcenter the-two members i and as they are being closed. ln performing thefunction of' a guide thedanger of bruising the closing-in edges isavoided.

Lil-4 are extensions or feet at the lower end of the part l and to theseextensions it is referable to hinge the part 2, vas by the Knuckles 5 5and a pivot pin The eX- tensions Lproject below the knuckles 5-5 withthe result that the operator is permitted te lia-nele the moldveryquicily 'te open or close trie same. The position of the rnold inuse is substantially upright, and when the mold is putin position itleans against a rack, such as l0, the lower end being supported on thefloor. Any suitable form of clamp may he applied. yto vthe mold tosecure the parts i and 2 together, forfeXaniple, a hand 7 and a 'Wedge8. When the moldvis set up ready for use this vhand engages the tivoparts, as shown, and the edge is driven into place, thereby securelyclamping the tivo members together. i

' in the forni shown, 9-9' are reinforcing ribson the rear of the back,which may he provided to. add strength. The side iianges on the cover 2perform the function of reinforcing 'ribs to strengthen the saine,thereby making it unnecessary to. rile thehack of the cover, although,of course, such-ribbing may he provid-ed if desired. .g ln this form of'mold l vain-enabled to cast the two lmembers i and 2, and the same mayvbe produced very economically vsince' it is y only necessary to machineythe closing-in edges. 'For example,

in the preferred forni the inclines aforesaid would he smoothed up ormachined so as to operate freely.- lt is also desirable to Inachine orsmooth up the edges of the nanges where they engage the shoulders il 1b,sox asis customary to clean and rease the interior which the hotlsurfaces' of the mold wit metal engages. By my construction this.cleaning and greasing.. process is-.simplied and made easy, since'ready access may be had to the said parts at any time'. Furthermore, bylhaving these'parts connected byv the pivoted joint, acomplete setislalw'ay's found, thereby avoiding the. necessity' of. selecting twoseparate' pieces that are'proirlierly adapted to'one another. e

As soon as t metal has sufficiently cooled toharden; the clamp may bereleased and the part 2 swung 'open (see dotted'lines Fig.. 1) -therebyreleasing the ingots, which may be quickly.,v

withdrawn andthe mold prepared for an-v other ,operation By hinging thearts, the

. danger of breaking 1s also avoide and the clamp guaranteeing theproperclosing in ofA abutting surfaces at the outer side of each flangeand groove being correspondingl bev- Bled and arranged to force theinner si e wally operator can very readilyT 'handle the same in.opening, `since oneend is held by the hinge. Another advantage of thehinged joint in connection with the interlocking. parts is,

that it performs, in a way, the function of a the lower end of' themoldat all times. By this hinged arrangement too it is possible to dispensewith more than one clamp','althoughv in practice as manymay-be'employed. as djesired. Heretofore the constructions have beensuch as to require the presence of a plurality ofclam s;

By avoiding t e formation of the af very substantial saving is effectednot only labor, but also in waste or scrap, since for the use ofingots,1";or example in rollin mills, it is'necessarj to first trim offand iscard these obj ectionable lfins before the ingotisin pro er shapefor the mill.

at I-clai1n is', l. In a mold, thecombination ofa cover having dependingside'flanges, a back having grooves to receive said flanges, one ofthefabutting surfaces between each flange and groove at the'outer side ofthe flange being 1 -beveled and arranged to force the. inner side wallof said flange laterally-into intimate contact-withthe inner side wallof 'its groove, and means to clamp the arts together.

2. In a mold, thecom ination of a cover having' depending sideflanges, aback having grooves to receive vsaid flanges, one of the abuttingsurfaces between each flange and roove at' theoutei'. side'of the flangebeing eveled and arranged to force the inner side wall of saidilangelaterally into intimate con. tact with the inner side wall ofitsgroove,

means to" c1amp the parts together, -anda hinge and closure at one endofsaid' parts.

' 3. In a mold, the combination of a cover having depending sideflanges," a back having grooves to receive saidl flanges, both of theofthe flange laterally into intimate contact 65 .with the inner' sidewall of each groove.

4. In arnold, the combination of a cover having depending sideflanges, aback having grooves to receive said Hanges, one ofl the.

abutting surfaces :between each' flange Tand 70 groove at the outer sideof said flangebeing beveled andA arranged to force the inner side 5. Atwo-part hinged mold, sides onl one part engaging in recesses on theother part, 80

an end clos'ureon the latter part, and abinge member on said partextending belowi the hinge mein-ber on the other art.,

' 6. A twbparthinged mo d, 'sides on one 'f part engaging m recesses'inthe other part, a3-

and an end. closure v o/n the latter part, the opposite end being openat all times, the said.'

sides having. beveled' surfaces coacting correspondmg beveled surfaceson said ref.

cesses when`- the parts are broughttogether;`9T` 7 In a mold,.acoverjdepending flanges ateach side thereof, a back having corresponding recesses to receive the flanges, fa'f 4hinge at o nevendveonnecting the'cov'er and the ack, and a closure'at the same end,sald 95 f flanges beveled on the outer side coactingwith corresponding'beveled surfaces on said recesses when the parts'arebrought together'-.to' force said flanges laterally 'into f intimate l side engagementwith that part ofthe mold 1 00 between said flanges. A 8. In a' mold, aback, a cover adapted' thereto, a side flange on one of said partsadapted to engage the op osite part, andmeans coacting withsaid coverand -back are brought together to force said flange laterally intointimate closing conv tact with said opposite' part. 9. In a mold,aback, a `cover adapted thereto, two side flan es on one of said partsli' adaptedtopengage t e opposite par-t, and -means coacting with saidflanges when said coverand back are brought together vto forcesaidflanges laterally into intimate' closing. contact with saidopposite'part.

thereto, means to clamp said parts together, side flanges carried by oneof saidparts and adapted to engage the opposite part, and

'means coacting with said flanges when the 12o cover and back areclamped together to force said flanges laterally into intimate; closingL contact vwith saidoppositep'art.

onlie.' n. Law'roisi. Witnesses:v 'ARTHUR H; QUIGLEY,

E;'.H.;Y ATESM i I l ange when said 41:05

. 11s v 4 10.In a` mold, a back, a' cover hinged

